Sierra
Enterprise AI company providing Agent OS and related tools for building, deploying and improving customer-facing AI agents across chat, voice and digital channels.
$15B*50.0%increase
AI valuation
$0
$5B
$10B
$15B
$20B
$10B
Sep 4, 2025
$15B
May 4, 2026
2026
Financial events
| Date | Event | Type | Figures | Source |
|---|---|---|---|---|
| May 4, 2026 | Sierra raises $950M | Funding round | $950M raised | Sierra |
| Feb 6, 2026 | Sierra exceeds $150M ARR | Revenue disclosure | $150M Annual recurring revenue as of 2026-02-06 | Sierra |
| Nov 21, 2025 | Sierra reaches $100M ARR | Revenue disclosure | $100M Annual recurring revenue as of 2025-11-21 | Sierra |
| Sep 4, 2025 | Sierra raises $350M | Funding round | $350M raised | Sierra |
* Market cap / valuation. Company values are AI-attributed: the latest market cap or valuation × the share attributed to AI (100% for pure AI companies). Methodology